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With any custom car audio fiberglass project there are multiple different materials that you will need to build your project. Below you will find a video describing some of the various materials needed as well a defined use as well as features to look for.


The video at right gives a great overview of several of the products that are available and will be needed for your custom fabrication project.


Below is a list of what I generally try to keep on hand for fiberglass car audio installs:


  • Polyester Resin - Used to bind fiberglass fibers, look for resins that have good working time.

  • Fiberglass Chop Mat - Adds strength to the part, available in different weights per unit area, heavy mat used to add strength with less layers, but difficult on curved surfaces. 

  • Fiberglass Rollers - Used to push air bubble out of fiberglass parts, available in different shapes and sizes for corners or flat surface rolling.

  • Chip brushes - Cheap brushes for applying resin, buy in bulk, the cheaper the better!

  • Pigment - Used to make air bubbles more obvious, gives a more finished look to fiberglass parts.

  • Gloves - Protect your hands.

  • Fleece or Grill Cloth Fabric - Fleece is used for large surfaces to avoid sagging, grill cloth is ideal as it absorbs less resin, grill cloth is better for small parts.


What materials are needed for a fiberglass car audio project?


Fiberglass Materials